Jean-Baptiste Douville de Franssu made the claim as the bank reported net profit of 16.1 million euros (USD 18.3 million) last year, down from 69.3 million euros in 2014. The bank attributed the decrease to lower interest rates and market uncertainties and provisions to fix a foreign tax issue.
In an interview with Vatican media, de Franssu acknowledged that in the past the IOR had been subject to abuse "because you cannot serve two masters, and money is tempting."
The bank has some 14,801 customers. About half are religious orders which use its investment services and to transfer money to missions around the world. Other customers include Vatican offices and employees. Total client assets under management at the end of 2015 were 5.8 billion euros (USD 6.6 billion).
Each year, the bank gives the pope around 50 million euros, much of it to run the Holy See. This year, Pope Francis is only getting the 16.1 million euro profit.
The bank's general director, Gian Franco Mammi, suggested that in previous years, the bank had dipped into its capital to make the donation.
For fiscal year 2014, the IOR gave the pope 55 million euros from a profit of 69.3 million euros. But in fiscal year 2013, the IOR gave him 54 million euro even though it only turned a 2.9 million euro profit, suggesting that the majority of the donation came from capital that was needed to run the Holy See.
The IOR embarked on a lengthy and costly cleanup to ascertain who exactly held accounts there and whether they were entitled to after years of scandals.
